You can try to clear Teams cache to see if it helps for your issue, please follow the steps below:
- Click Go > Go To Folder.
- Then negative to following folder and delete them to see if it helps.
~/Library/Caches/com.microsoft.teams
~/Library/Caches/com.microsoft.teams.shipit
~/Library/Application Support/Microsoft/Teams
My microsoft teams on Mac keeps crashing as well. I updated the OS on the MAC, I uninstalled the app, deleted these folders as mentioned above, reinstalled the app. The app was working fine for two days and then crashed again. Repeated the process and the app
is working fine again for now, but may crash again. Please assist in why this keeps happening?